Enum SQLiteValue 

pub enum SQLiteValue<'a> {
    Integer(i64),
    Real(f64),
    Text(Cow<'a, str>),
    Blob(Cow<'a, [u8]>),
    Null,
}

Represents a SQLite value

Variants

Integer(i64)

Integer value (i64)

Real(f64)

Real value (f64)

Text(Cow<'a, str>)

Text value (borrowed or owned string)

Blob(Cow<'a, [u8]>)

Blob value (borrowed or owned binary data)

Null

NULL value

Implementations

impl<'a> SQLiteValue<'a>

pub const fn is_null(&self) -> bool

Returns true if this value is NULL.

pub const fn as_i64(&self) -> Option<i64>

Returns the integer value if this is an INTEGER.

pub const fn as_f64(&self) -> Option<f64>

Returns the real value if this is a REAL.

pub fn as_str(&self) -> Option<&str>

Returns the text value if this is TEXT.

pub fn as_bytes(&self) -> Option<&[u8]>

Returns the blob value if this is BLOB.

pub fn into_owned(self) -> OwnedSQLiteValue

Converts this value into an owned representation.

pub fn convert<T: FromSQLiteValue>(self) -> Result<T, DrizzleError>

Convert this SQLite value to a Rust type using the FromSQLiteValue trait.

This provides a unified conversion interface for all types that implement FromSQLiteValue, including primitives and enum types.

Example

let value = SQLiteValue::Integer(42);
let num: i64 = value.convert()?;

pub fn convert_ref<T: FromSQLiteValue>(&self) -> Result<T, DrizzleError>

Convert a reference to this SQLite value to a Rust type.

Trait Implementations

impl<'a> Clone for SQLiteValue<'a>

fn clone(&self) -> SQLiteValue<'a>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for SQLiteValue<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a> Default for SQLiteValue<'a>

fn default() -> SQLiteValue<'a>

Returns the “default value” for a type.

impl<'a> Display for SQLiteValue<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a> From<&'a [u8]> for SQLiteValue<'a>

fn from(value: &'a [u8]) -> Self

Converts to this type from the input type.

impl<'a> From<&'a Cow<'a, SQLiteValue<'a>>> for SQLiteValue<'a>

fn from(value: &'a Cow<'a, SQLiteValue<'a>>) -> Self

Converts to this type from the input type.

impl<'a> From<&'a OwnedSQLiteValue> for SQLiteValue<'a>

fn from(value: &'a OwnedSQLiteValue) -> Self

Converts to this type from the input type.

impl<'a> From<&'a SQLiteValue<'a>> for Cow<'a, SQLiteValue<'a>>

fn from(value: &'a SQLiteValue<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<&SQLiteValue<'a>> for OwnedSQLiteValue

fn from(value: &SQLiteValue<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<&'a SQLiteValue<'a>> for SQLiteValue<'a>

fn from(value: &'a SQLiteValue<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<&'a String> for SQLiteValue<'a>

fn from(value: &'a String) -> Self

Converts to this type from the input type.

impl<'a> From<&bool> for SQLiteValue<'a>

fn from(value: &bool) -> Self

Converts to this type from the input type.

impl<'a> From<&f32> for SQLiteValue<'a>

fn from(value: &f32) -> Self

Converts to this type from the input type.

impl<'a> From<&f64> for SQLiteValue<'a>

fn from(value: &f64) -> Self

Converts to this type from the input type.

impl<'a> From<&i16> for SQLiteValue<'a>

fn from(value: &i16) -> Self

Converts to this type from the input type.

impl<'a> From<&i32> for SQLiteValue<'a>

fn from(value: &i32) -> Self

Converts to this type from the input type.

impl<'a> From<&i64> for SQLiteValue<'a>

fn from(value: &i64) -> Self

Converts to this type from the input type.

impl<'a> From<&i8> for SQLiteValue<'a>

fn from(value: &i8) -> Self

Converts to this type from the input type.

impl<'a> From<&isize> for SQLiteValue<'a>

fn from(value: &isize) -> Self

Converts to this type from the input type.

impl<'a> From<&'a str> for SQLiteValue<'a>

fn from(value: &'a str) -> Self

Converts to this type from the input type.

impl<'a> From<&u16> for SQLiteValue<'a>

fn from(value: &u16) -> Self

Converts to this type from the input type.

impl<'a> From<&u32> for SQLiteValue<'a>

fn from(value: &u32) -> Self

Converts to this type from the input type.

impl<'a> From<&u64> for SQLiteValue<'a>

fn from(value: &u64) -> Self

Converts to this type from the input type.

impl<'a> From<&u8> for SQLiteValue<'a>

fn from(value: &u8) -> Self

Converts to this type from the input type.

impl<'a> From<&usize> for SQLiteValue<'a>

fn from(value: &usize) -> Self

Converts to this type from the input type.

impl<'a> From<Cow<'a, [u8]>> for SQLiteValue<'a>

fn from(value: Cow<'a, [u8]>) -> Self

Converts to this type from the input type.

impl<'a> From<Cow<'a, SQLiteValue<'a>>> for SQLiteValue<'a>

fn from(value: Cow<'a, SQLiteValue<'a>>) -> Self

Converts to this type from the input type.

impl<'a> From<Cow<'a, str>> for SQLiteValue<'a>

fn from(value: Cow<'a, str>) -> Self

Converts to this type from the input type.

impl<'a, T> From<Option<T>> for SQLiteValue<'a>

where T: TryInto<SQLiteValue<'a>>,

fn from(value: Option<T>) -> Self

Converts to this type from the input type.

impl<'a> From<OwnedSQLiteValue> for SQLiteValue<'a>

fn from(value: OwnedSQLiteValue) -> Self

Converts to this type from the input type.

impl<'a> From<SQLiteValue<'a>> for Cow<'a, SQLiteValue<'a>>

fn from(value: SQLiteValue<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<SQLiteValue<'a>> for OwnedSQLiteValue

fn from(value: SQLiteValue<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<SQLiteValue<'a>> for SQL<'a, SQLiteValue<'a>>

fn from(value: SQLiteValue<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<String> for SQLiteValue<'a>

fn from(value: String) -> Self

Converts to this type from the input type.

impl<'a> From<Vec<u8>> for SQLiteValue<'a>

fn from(value: Vec<u8>) -> Self

Converts to this type from the input type.

impl<'a> From<bool> for SQLiteValue<'a>

fn from(value: bool) -> Self

Converts to this type from the input type.

impl<'a> From<f32> for SQLiteValue<'a>

fn from(value: f32) -> Self

Converts to this type from the input type.

impl<'a> From<f64> for SQLiteValue<'a>

fn from(value: f64) -> Self

Converts to this type from the input type.

impl<'a> From<i16> for SQLiteValue<'a>

fn from(value: i16) -> Self

Converts to this type from the input type.

impl<'a> From<i32> for SQLiteValue<'a>

fn from(value: i32) -> Self

Converts to this type from the input type.

impl<'a> From<i64> for SQLiteValue<'a>

fn from(value: i64) -> Self

Converts to this type from the input type.

impl<'a> From<i8> for SQLiteValue<'a>

fn from(value: i8) -> Self

Converts to this type from the input type.

impl<'a> From<isize> for SQLiteValue<'a>

fn from(value: isize) -> Self

Converts to this type from the input type.

impl<'a> From<u16> for SQLiteValue<'a>

fn from(value: u16) -> Self

Converts to this type from the input type.

impl<'a> From<u32> for SQLiteValue<'a>

fn from(value: u32) -> Self

Converts to this type from the input type.

impl<'a> From<u64> for SQLiteValue<'a>

fn from(value: u64) -> Self

Converts to this type from the input type.

impl<'a> From<u8> for SQLiteValue<'a>

fn from(value: u8) -> Self

Converts to this type from the input type.

impl<'a> From<usize> for SQLiteValue<'a>

fn from(value: usize) -> Self

Converts to this type from the input type.

impl<'a> PartialEq for SQLiteValue<'a>

fn eq(&self, other: &SQLiteValue<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> PartialOrd for SQLiteValue<'a>

fn partial_cmp(&self, other: &SQLiteValue<'a>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a> SQLParam for SQLiteValue<'a>

const DIALECT: Dialect = Dialect::SQLite

The SQL dialect for this parameter type Default is SQLite (uses ? placeholders)

impl<'a> ToSQL<'a, SQLiteValue<'a>> for AutoVacuum

fn to_sql(&self) -> SQLiteSQL<'a>

fn alias(&self, alias: &'static str) -> SQL<'a, V>

impl<'a, Table, Query> ToSQL<'a, SQLiteValue<'a>> for CTEView<'a, Table, Query>

where Query: ToSQL<'a, SQLiteValue<'a>>,

ToSQL implementation renders just the CTE name for use in FROM clauses. Unlike aliased tables (which render as “original” AS “alias”), CTEs should just render as their name since they’re already defined in the WITH clause.

fn to_sql(&self) -> SQL<'a, SQLiteValue<'a>>

fn alias(&self, alias: &'static str) -> SQL<'a, V>

impl<'a> ToSQL<'a, SQLiteValue<'a>> for Encoding

fn to_sql(&self) -> SQLiteSQL<'a>

fn alias(&self, alias: &'static str) -> SQL<'a, V>

impl<'a> ToSQL<'a, SQLiteValue<'a>> for JournalMode

fn to_sql(&self) -> SQLiteSQL<'a>

fn alias(&self, alias: &'static str) -> SQL<'a, V>

impl<'a> ToSQL<'a, SQLiteValue<'a>> for LockingMode

fn to_sql(&self) -> SQLiteSQL<'a>

fn alias(&self, alias: &'static str) -> SQL<'a, V>

impl<'a> ToSQL<'a, SQLiteValue<'a>> for Pragma

fn to_sql(&self) -> SQLiteSQL<'a>

fn alias(&self, alias: &'static str) -> SQL<'a, V>

impl<'a, Schema, State, Table> ToSQL<'a, SQLiteValue<'a>> for QueryBuilder<'a, Schema, State, Table>

fn to_sql(&self) -> SQLiteSQL<'a>

fn alias(&self, alias: &'static str) -> SQL<'a, V>

impl<'a> ToSQL<'a, SQLiteValue<'a>> for SQLiteValue<'a>

fn to_sql(&self) -> SQL<'a, SQLiteValue<'a>>

fn alias(&self, alias: &'static str) -> SQL<'a, V>

impl<'a> ToSQL<'a, SQLiteValue<'a>> for SecureDelete

fn to_sql(&self) -> SQLiteSQL<'a>

fn alias(&self, alias: &'static str) -> SQL<'a, V>

impl<'a> ToSQL<'a, SQLiteValue<'a>> for Synchronous

fn to_sql(&self) -> SQLiteSQL<'a>

fn alias(&self, alias: &'static str) -> SQL<'a, V>

impl<'a> ToSQL<'a, SQLiteValue<'a>> for TempStore

fn to_sql(&self) -> SQLiteSQL<'a>

fn alias(&self, alias: &'static str) -> SQL<'a, V>

impl<'a> TryFrom<&'a SQLiteValue<'a>> for &'a [u8]

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &'a SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&'a SQLiteValue<'a>> for &'a str

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &'a SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for String

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for Vec<u8>

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for bool

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for f32

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for f64

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for i16

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for i32

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for i64

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for i8

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for isize

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for u16

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for u32

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for u64

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for u8

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&SQLiteValue<'a>> for usize

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for String

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for Vec<u8>

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for bool

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for f32

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for f64

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for i16

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for i32

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for i64

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for i8

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for isize

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for u16

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for u32

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for u64

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for u8

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<SQLiteValue<'a>> for usize

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: SQLiteValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> StructuralPartialEq for SQLiteValue<'a>